When comparing oO vs Faif, the Slant community recommends Faif for most people. In the question“What are the best Android games without in-app purchases/paywalls?”Faif is ranked 58th while oO is ranked 120th. The most important reason people chose Faif is:

During matches the player is able to go into a shop that has purchasable powerups. These powerups are purchased with in game currency that is earned from matching currency tiles while in a match.

Pros

Pro

Great game for masochists

oO is hard, extremely hard. Man y many retries will be used but in the end each level is frustratingly fun.

Pro

Variety in levels

Each level has it's own look and variety of obstacles.

Pro

In game shop to purchase powerups with earned currency

During matches the player is able to go into a shop that has purchasable powerups. These powerups are purchased with in game currency that is earned from matching currency tiles while in a match.

Pro

Cross-platform multiplayer

Faif has included cross-platform asynchronous multiplayer that works across Android iOS and the web. The player can choose to battle random opponents as well as friends by using a four digit code.

Pro

Fun mix of puzzle and roguelike games

Faif uses and entertaining mix of match tile puzzle games and roguelikes, in that the player matches five tiles to complete moves such as striking their opponent or earning more health, Once an opponent is defeated the player then goes on to the next just as in a roguelike the player goes another level deeper into the dungeon.

Cons

Con

Precision perception feels off

The precision needed to execute very exactly time moves is sometime hard to judge, resulting in death.

Con

Can become time consuming and boring

The further one gets in the game the more time consuming matches may become, which in and of itself do not really add much to the actual gameplay, which may become tiring.